Combination door bumper and holder



May 3, 193. 1.. MAKER COMBINATION DOOR BUMPER AND HOLDER INVENTOR FiledDec; 6, 1957 W fmra.

H IS ATTORNEYS Patented May 3, 1938 UNITED STATES PATENT OFFlCE 3Claims.

My invention relates to doors, and includes among its objects andadvantages the provision of an improved combination bumper and doorholder.

An object of my invention is to provide a combination bumper and doorholder in which the bumping and holding features are combined in asingle unit and in which the bumper feature functions independently ofthe holder feature in response to limited bumping impacts of the door,but in which theholder feature is brought into play upon the applicationof abnormal forces to the door.

Another object is to provide a resilient bumper for the door and inwhich means is incorporated for positively latching the door in an openposi tion, but in which the latching feature will release in response tothe application of predetermined forces on the door.

Another object is to provide a door bumper of resilient material such asrubber and in. which positive door latching means is incorporated forholding the door in an open position and in which the tension of therubber part co-operates with the latch feature to hold the door in asturdy manner so as to eliminate lost motion, rattling, and the like.

In the accompanying drawing:

Fig. 1 is a sectional view of my invention showing the manner in whichit may be applied to a door and wall trim;

Fig. 2 is a view illustrating the application of the holder feature;

Fig. 3 is a sectional-view along the line 3-3 of Fig. 1; and

Fig. 4 is a perspective view of a portion of the holder feature with theparts separated for the sake of clearness.

In the embodiment selected to illustrate my invention, I make use of arubber body I having a large bore l2 and provided with a neck l4 havinga smaller bore l6 communicating with the bore l2. The head ill of ashank 20 is anchored in one end of the body ID and is provided with ascrew 22 which may be anchored in the door 24.

To the baseboard or wall trim 26 I connect a shank 28 which is providedwith a screw 30 threaded into the board 26. Shank 28 is axially alignedwith the bore l6 and includes a flat sided reach 32 to which a wrenchmay be applied for turning purposes. Shank 20 is also provided with afiat sided reach 34 for the application of a wrench. I prefer to mount ametallic washer 36 adjacent the bolt 26, which washer is provided withan opening for the reception of the screw 30, while the end of the reach32 has pressure relation with the washer for pressing it against theboard 26. Washer ,36 is slightly dished and constitutes a bumpingsurface for the end of the neck 14. Shank 20 includes a flange 38 whichhas pressure relation with the door 24.

Within the bore I2 I mount a latch unit 49 which is designed to havelatching connection with the shank 28 for positively holding the door inan open position. I provide the shank 28 with a curved end 42 and acircumferential groove 44. Latch element 40 is provided with fourresilient fingers 46 bent to provide V-shaped offsets 48 arranged to liewithin the groove 44 for positively holding the door in an openposition, as illustrated in Fig. 2.

In 4 I illustrate the latch element 40 as comprising a split sleeve 50provided with a flange 52 integrally connected with the fingers 46 whichare bent inwardly of the sleeve and arranged in angular relation withrespect to each other as illustrated in Fig. 4. Sleeve 50 is inserted inan outer sleeve 54 having a flange 66. Sleeve 50 is shaped to have anormal outside diameter slightly greater than the inside diameter of thesleeve 54. The ends 58 of the sleeve 5,6 are spaced sufficiently far topermit the sleeve 50 to be flexed to such a diameter as to be insertiblein the sleeve 54. Sleeve 5|] is pressed inwardly of the sleeve 54 tobring its end 60 into pressure relation with the flange 56 of the sleeve54, after which the latter sleeve is deformed to provide a flange 62which connects the two sleeves as a unit. The latch element 40 movesfreely in the bore l2.

The rubber body I0 may be formed by molding and. may be provided withgrooves 64 for the reception of flanges: 66 formed on the head l8 so asto provide a good connection between the shank 2|] and the body Ill. Thematerial of the body In is sufficiently flexible to permit the body tobe stretched suificiently far for accommodating the head I8, after whichthe tension of the material draws the body firmly about the head IS. Thelatch element 46 may be positioned in the bore l2 by stretching the bodyII] to enlarge the bore 68 for the reception of the latch element.

Fig. 1 illustrates consummation of the bumping action only, while Fig. 2illustrates application of the holder feature. In operation, the shank28 is axially aligned with the bore "5 as well as the bore l2, while thefingers 46 are concentrically arranged with respect to the bore I2. Asthe door is swung open, its travel is stopped when the neck It strikesthe washer 36. Since the latch element 40 is loosely mounted in the borel2, any engagement between the curved end 42 and the V-shaped elements48 will merely advance the latch element 4!] in the groove I2. Thus, thelatch feature is not brought into play until sufiicient forces areapplied to the door for collapsing or buckling the neck l4.

In applying such forces, the neck I4 will shorten in such a degree as topermit the curved end 42 to be pushed beyond the V-elements 48 forpositioning the latter within the groove 44. Relative movement of thelatch element within the bore I2 is limited through its engagement withthe surfaces "II! and 12. After latching rel'ation has been establishedbetween the V-elements 48 and the groove 44, cessation of abnormalforces on the door will permit extensionof the neck I4, at which timethe latch element 40 takes the is still under slight compression but thefingers 46 have such pressure relation with the grooved part of theshank 28 as to prevent its withdrawal until additional forces areapplied to'the door in a closing direction. It will thus be seen thatthe door is effectively supported in its open position and that theslightly compressed neck I4 absorbs lost motion and prevents rattling ofthe door.

To close the door, the latch feature is released by merely exerting apull on the door, at which time the fingers 46 are flexed for releasingthe shank 28. Upon release of the latch feature the latch element 40will lie adjacent the wall 21, but it fits with such a degree oflooseness within the bore I2 as to move in the direction of the wall 10upon engagement of the curved end 42 with the V-elements 48 so as not tobring the door holder into operation until abnormal forces are appliedthereto.

In my invention I utilize resilient material such as rubber for bumpingpurposes, while the latch or holder feature comprises metal. The rubberpart will last indefinitely since it is subjected to compression forcesonly, while the metallic parts will Wear indefinitely. The holderfeature is incorporated in the chamber so as to provide a compact unitof simple construction, one which may be manufactured at a relativelylow cost. While I have illustrated the shank 20 as being connected withthe door 24, and the shank 28 connected with the board 26, the parts maybe reversed depending upon the desires of the user, since the operationwill remain the same.

Without further elaboration, the foregoing will so fully explain myinvention that others may, by applying current knowledge, readily adaptthe same for use under various conditions of service.

II claim:

1. A combination door bumper and holder comprising a resilient bodyhaving a bore, a latch part for entering said bore, said resilient bodyand said latch part being arranged for connection with a door and afixed support, and means movablein said bore and co-operable on saidlatch position of Fig. 2. In this position the neck I4 part for latchingthe door in an open position upon predetermined compression of theresilient body.

2. A combination door bumper and holder comprising a resilient bodyhaving a bore, a latch part for entering said bore, said resilient bodyand said latch part being arranged for connection with a door and afixed support, and means movable in said bore and co-operable on saidlatch part for latching the door in an open position upon predeterminedcompression of the resilient body, said means being releasably relatedto said latch part and yielding upon the application of predeterminedforces upon the door for releasing the latch part.

3. A combination door bumper and holder comprising a resilient bodyhaving a bore, a latch held under compression with said means in latchedrelation with said latch part.

LOUIS MAIER.

